The fiber in our diets he refers to is the fiber from fruits and vegetables that we cannot digest. I imagine if we could digest the grass it wouldn’t count towards the fiber that aids in passing matter through the digestive tract as it would have been digested already
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Reply to comment by readitreaddit in ELI5: How does buffalos get so big while being herbivores? by Kay1636
The fiber in our diets he refers to is the fiber from fruits and vegetables that we cannot digest. I imagine if we could digest the grass it wouldn’t count towards the fiber that aids in passing matter through the digestive tract as it would have been digested already